SnapdragonGallery: fix TrueScanner landscape interface

When in landscape, the photo didn't display right

Change-Id: Iafe459657a43c2a979149b7a6820473be49d8fdb
CRs-Fixed: 1043205

2 files changed, 71 insertions, 4 deletions

diff --git a/src/com/android/gallery3d/filtershow/imageshow/GeometryMathUtils.java b/src/com/android/gallery3d/filtershow/imageshow/GeometryMathUtils.java
index c3a517c66..764312199 100644..100755
--- a/src/com/android/gallery3d/filtershow/imageshow/GeometryMathUtils.java
+++ b/src/com/android/gallery3d/filtershow/imageshow/GeometryMathUtils.java
@@ -484,6 +484,32 @@ public final class GeometryMathUtils {
         return m;
     }
 
+    public static Matrix getSegMatrix(GeometryHolder holder, int bitmapWidth,
+                                      int bitmapHeight, int viewWidth, int viewHeight
+            , int oldw, int oldh) {
+        int bh = bitmapHeight;
+        int bw = bitmapWidth;
+        if (GeometryMathUtils.needsDimensionSwap(holder.rotation)) {
+            bh = bitmapWidth;
+            bw = bitmapHeight;
+        }
+        float oldScale = GeometryMathUtils.scale(bw, bh, oldw, oldh);
+        if (oldScale > 3.0f) {
+            oldScale = 3.0f;
+        }
+        oldScale *= SHOW_SCALE;
+        float scale = GeometryMathUtils.scale(bw, bh, viewWidth, viewHeight);
+        if (scale > 3.0f) {
+            scale = 3.0f;
+        }
+        scale *= SHOW_SCALE;
+        Matrix m = new Matrix();
+        m.setTranslate(-oldw / 2f, -oldh / 2f);
+        m.postScale(scale / oldScale, scale / oldScale);
+        m.postTranslate(viewWidth / 2f, viewHeight / 2f);
+        return m;
+    }
+
     public static RectF getTrueCropRect(GeometryHolder holder, int bitmapWidth, int bitmapHeight) {
         RectF r = new RectF(holder.crop);
         FilterCropRepresentation.findScaledCrop(r, bitmapWidth, bitmapHeight);
diff --git a/src/com/android/gallery3d/filtershow/imageshow/ImageTrueScanner.java b/src/com/android/gallery3d/filtershow/imageshow/ImageTrueScanner.java
index 9d8e36d07..d72ec3783 100644..100755
--- a/src/com/android/gallery3d/filtershow/imageshow/ImageTrueScanner.java
+++ b/src/com/android/gallery3d/filtershow/imageshow/ImageTrueScanner.java
@@ -58,7 +58,7 @@ public class ImageTrueScanner extends ImageShow {
     private Matrix mDisplayMatrix;
     private GeometryMathUtils.GeometryHolder mGeometry;
     public final static int POINT_NUMS = 4;
-    private static int[] mSegPoints = new int[POINT_NUMS*2+4];
+    private static float[] mSegPoints = new float[POINT_NUMS*2+4];
     private boolean[] isTouched = new boolean[POINT_NUMS];
     private RectF mBitmapBound = new RectF();
     private Bitmap mBitmap;
@@ -77,6 +77,9 @@ public class ImageTrueScanner extends ImageShow {
     private Paint mGrayPaint;
     private Bitmap mGlareButtonOnBitmap;
     private Bitmap mGlareButtonOffBitmap;
+    private boolean updateGlareRemovalButton = false;
+    private Matrix mDisplaySegPointsMatrix;
+    private Matrix mDisplayMatrixInverse;
 
     public ImageTrueScanner(Context context) {
         super(context);
@@ -94,7 +97,11 @@ public class ImageTrueScanner extends ImageShow {
     }
 
     public static int[] getDeterminedPoints() {
-        return mSegPoints;
+        int[] points = new int[mSegPoints.length];
+        for (int i = 0; i < mSegPoints.length; i++) {
+            points[i] = (int)mSegPoints[i];
+        }
+        return points;
     }
 
     public static boolean getRemoveGlareButtonStatus() {
@@ -219,6 +226,28 @@ public class ImageTrueScanner extends ImageShow {
     @Override
     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         super.onSizeChanged(w, h, oldw, oldh);
+        updateMatrix(w,h,oldw, oldh);
+        mDisplaySegPointsMatrix.mapPoints(mSegPoints);
+        getBitmapBound();
+        updateGlareRemovalButton = true;
+    }
+
+    private void updateMatrix(int w, int h, int oldw, int oldh) {
+        if (mBitmap == null) {
+            return;
+        }
+        Resources res = getContext().getResources();
+        int panelHeight =  res.getDimensionPixelOffset(R.dimen.category_actionbar_panel_height);
+        mDisplayMatrix = GeometryMathUtils.getFullGeometryToScreenMatrix(mGeometry,
+                mBitmap.getWidth(), mBitmap.getHeight(), w, h - panelHeight);
+        mDisplaySegPointsMatrix = GeometryMathUtils.getSegMatrix(mGeometry, mBitmap.getWidth(),
+                mBitmap.getHeight(), w, h - panelHeight, oldw, oldh- panelHeight);
+        mDisplayMatrixInverse = new Matrix();
+        mDisplayMatrixInverse.reset();
+        if (!mDisplaySegPointsMatrix.invert(mDisplayMatrixInverse)) {
+            Log.w(TAG, "could not invert display matrix");
+            mDisplayMatrixInverse = null;
+        }
     }
 
     private void getBitmapBound() {
@@ -283,9 +312,20 @@ public class ImageTrueScanner extends ImageShow {
             return;
         toggleComparisonButtonVisibility();
 
-        if(mDisplayMatrix == null) {
+        if(mDisplayMatrix == null || mDisplaySegPointsMatrix == null
+                || mDisplayMatrixInverse == null) {
             mDisplayMatrix = GeometryMathUtils.getFullGeometryToScreenMatrix(mGeometry,
                     mBitmap.getWidth(), mBitmap.getHeight(), canvas.getWidth(), canvas.getHeight());
+            mDisplaySegPointsMatrix = GeometryMathUtils.getSegMatrix(mGeometry,
+                    mBitmap.getWidth(), mBitmap.getHeight(), canvas.getWidth(),
+                    canvas.getHeight(),canvas.getWidth(), canvas.getHeight());
+            mDisplayMatrixInverse = new Matrix();
+            mDisplayMatrixInverse.reset();
+            if (!mDisplaySegPointsMatrix.invert(mDisplayMatrixInverse)) {
+                Log.w(TAG, "could not invert display matrix");
+                mDisplayMatrixInverse = null;
+                return;
+            }
             getBitmapBound();
         }
         if(!isDetectedPointsApplied) {
@@ -308,9 +348,10 @@ public class ImageTrueScanner extends ImageShow {
     }
 
     private void drawGlareRemovalButton(Canvas canvas) {
-        if(mGlareButtonX == -1000 && mGlareButtonY == -1000) {
+        if(mGlareButtonX == -1000 && mGlareButtonY == -1000 || updateGlareRemovalButton) {
             mGlareButtonX = canvas.getWidth()/2;
             mGlareButtonY = canvas.getHeight()*1/5;
+            updateGlareRemovalButton = false;
         }
         RectF rectF = new RectF();
         Bitmap bitmap;